World Special Federation is a non-profit, tax-exempt public charity established in the United States under the US IRS Code Section 501(c)(3).
You can send donations and inquiries to:
World Special Federation
How can I verify the tax-exempt status of an organization?
A) You can visit the IRS website : www.irs.gov/Charities-&-Non-Profits/Exempt-Organizations-Select-Check
B) Use this direct link to the IRS's Exempt Organizations Check Tool : apps.irs.gov/app/eos/
(1) Choose "Are eligible to receive tax-deductible charitable contributions"